I am also looking for a song. The music video is two couples in two cars making out with each other. It is a modern song and towards the end of the video the two cars crash and the couples come flying out of the cars and switch partners with each other. I would greatly appreciate if somebody could help me out

Use any search engine with any "specific words" in the order you remember. Just a few words is sufficient and also use the word "song lyrics" in the search. You will probably find the results.